Here's the thing, though, how long did it take him to come to that realization? He had the whole ride home to think about it. Then he had the family camping trip to think about it. So after all that, THEN he can't live with himself? Or is it that he finally figured out after 2 weeks, Hey, maybe somebody might come looking for me, I guess I'll kill myself. That plus the parents not particularly freaking out about their 23-year old son's possible death makes me press X to doubt.